function [landmark_labels] = standardise_landmarks(landmarks)

    left_to_frontal_map = [17,28; 18,29; 19,30; 20,31;
                       21,34; 22,32; 23,39; 24,38; 25,37; 26,42; 27,41;
                       28,52; 29,51; 30,50; 31,49; 32,60; 33,59; 34,58;
                       35,63; 36,62; 37,61; 38,68; 39,67];
                   
    right_to_frontal_map = [17,28; 18,29; 19,30; 20,31;
                       21,34; 22,36; 23,44; 24,45; 25,46; 26,47; 27,48;
                       28,52; 29,53; 30,54; 31,55; 32,56; 33,57; 34,58;
                       35,63; 36,64; 37,65; 38,66; 39,67];
                   
   landmark_labels = zeros(68,2); 
    
    if(size(landmarks,1) == 39)
        % Determine if the points are clock-wise or counter clock-wise
        % Clock-wise points are facing left, counter-clock-wise right
        sum = 0;
        for k=1:11
            step = (landmarks(k+1,1) - landmarks(k,1)) * (landmarks(k+1,2) + landmarks(k,2));
            sum = sum + step;
        end

        if(sum > 0)
            % First need to resample the face outline as there are 9
            % points in the near-frontal and 10 points in profile for
            % the outline of the face

            outline = iterate_piece_wise(landmarks(1:10,:), 9);
            brow = iterate_piece_wise(landmarks(13:16,:), 5);
            landmark_labels(1:9,:) = outline;
            landmark_labels(18:22,:) = brow;
            landmark_labels(left_to_frontal_map(:,2),:) = landmarks(left_to_frontal_map(:,1),:);
        else
            outline = iterate_piece_wise(landmarks(10:-1:1,:), 9);
            brow = iterate_piece_wise(landmarks(16:-1:13,:), 5);

            landmark_labels(9:17,:) = outline;
            landmark_labels(23:27,:) = brow;

            landmark_labels(right_to_frontal_map(:,2),:) = landmarks(right_to_frontal_map(:,1),:);                
        end
    else
       landmark_labels =  landmarks;
    end
end